This video runs for 11 minutes in total – the running order of interviews are below. 

Dr Louise Richardson
Principal and Vice Chancellor, University of St Andrews

Bhaskar Sen Gupta - Finalist
Arsenic removal from water

Sameer Hajee - Finalist
Nuru Light Project

Denise Rambaldi - Finalist
Golden Lion Tamarin Project

Catlin Powers - 2009 winner
Solsource project

Sir Crispin Tickell - Announcing Winner
Chairman

Bhaskar Sen Gupta - Winner's reaction
Arsenic removal from water

Paul Warwick
President, UK and West Africa, ConocoPhillips